The remarkable multiple mode Delta Scuti star BDS 1269A

Details The remarkable multiple mode Delta Scuti star BDS 1269A The remarkable multiple mode Delta Scuti star BDS 1269A

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...282..741m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 282, July 15, 1984, p. 741-747.

Other

8

Binary Stars, Stellar Oscillations, Stellar Spectrophotometry, Variable Stars, Light Curve, Metallicity, Stellar Luminosity, Vibration Mode

Scientific paper

Over 1600 differential photoelectric Stroemgren b measurements on BDS 1269A obtained during a 6 month period in 1982-1983 have been analyzed using periodiograms and convergent least squares. Seven frequencies are identified in the data set. This frequency set, when combined with other frequencies found in data obtained by Rucinski in 1976, suggests that the main pulsation mode of BDS 1269A is nonradial. The complete frequency representation also includes lower amplitude radial modes. The current analysis suggests that this star may have transferred power into alternative modes since 1976 and in this regard might be similar to another nonradial pulsator, 21 Mon.

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